Rotary power-hoe.



A. FUHR.

ROTARY POWER HOE.

Ammonium FILED um. 22, 1912 1,061,235. Patented May 6, 1913 Zfmwaza: [We /0r.-

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WM Jifarzz, eg.

H'tJINRIGH Lana,

or manna: m, icizarrantnr.

Lotti Application filed. August. 22,

To all whom 15 may concern Be it known that I, Aunt Form, subject of the (it and Dulce of Baden. retailing at 38 Seekenheimerst 'asse, lilannheim, ttrand Duchy of Baden, (harmony. have invented certain new and useful lIll1)lt)\'t3ltl('tltRtilt Rotary Power-Hoes, of which the following is a specification.

This invention relates to rotary power hoes and the likefor agricultural implements and the object of the present invention is to so construct the hoes that more or less uneven and even stony ground can lie-heed without damage to the cut terS.

Aecording to the present invention the disks carrying the cutting horn are mounted on the driving shaft in such a manner as to rotate in unison therewith hut he Capable of individual lmehwartil rotation on the driving nhal'i on the cutting hoes meeting insurmountable oljistacles. so as to he autmnat/i- (rally thrown out of action and pass over the obstacle, wl'lerenpon the cutting hoes again rotate in unison with the driving shaft and are thus brought again into operation.

In order that my invention may he more clearly iiuderstooth reference is made to the accompanying drawings which Show, hy way of exam ile, one preferred form of constructing the hoe.

Figure .l is a rear view'ot' the hoeing; mechanism, [no t r-ino; shown in sertion.

Fig. is an end i i f Fig. l partly in sec-- tion.

A'tleaignates the driving shaft: upon which are keyed a plurality ot flanged lltlf-ia-lth' l whose flanges b are recessed on their inner faces so as to form grooves (1 between juxtai-Reed flanges in which are loosely and rotata ly mounted the disks l) carrying the out tint hoes ti. Projecting laterally :t'roin each diet: l is a plurality of pine i eaeh oin hean; adapted to engage one arm oi" a catch in hell eranlc i pivotally niountetl on the flange 6. The r: lchen F are norunill i' held in on gageinent with the pine It) by means of? springs til, the movtzn'nent; heingr limited hy means of a suitable stop ll The parts: are prejttn'ahly iuelosed Within a canine .l to pro tort the same from dust; and the like.

The operation ot' the hoeing mechanism is as follows :---lhe dial: I) is normally rotated in unison with the driving shaft A in the direction of the arrow in Fig. 2 through the 'oltered by tho ohntat'lo.

Letters P en .lln tentmll ti, Mill tla 1912. Serial No. 716,457.

:atehes i and pins E, than aprine s G being mush that the cutting: hoe It will not: yield to any resistan e within normal limits. If the cutting hora meet an ohntarle offering slightly more than normal resistance, the dish l) will slightly -1lip on the driving shaft it and that; tension the springs ti which will contrihute to ovtat-oining the resistance it now, however, for example. the cutting hoe r/ meets a large stone or other ohotaele preheating an insurmountable resistnnre. the dial: 1') will remain stationary, while the driving shaft A. eontinues to rotate. no that the hin I will force hack the i'llttfltt'H i against? the action of the nprings (it until clear of the oalehes l. and until the pin l is caught by the next one need ingvatrh i whereupon the dial; I) will again rotate in unison with the driving shaft it, provided the hoe 1i hon pant-Jed over the ohatarle. it will thus he Pil fll that. the p05 sihility ot the hoes; I] heine' damaged is pre vented and the hoein g mechanism thrown out of action, should an tlli-2llllllOlllll'ttiBlQ obstacle he met and that the IiltC ITllIIlliE v'H'L automatically again onto-r5 into operation after ha ving panned over the (!l)r-'i:ltlt;.

l olaim it A rotary power lltit" comprising :1 rlrivingelruu-nt, an element driven thin-oily carrvine; a hoe and rapahlr ol' complett rotalion relatively to the drivingnheinenl a nein her projecting from olu of mid tltfltlitltS, and a nieinher ultzlhgml on'the other ole nu-nt aid nu-nila-ra lit-inn noraniily held in viehtahlo contact hut adapted to he moved out ot t-ontavt with raw other, no that the driven element moves in one dirinrtion in unis-:on with the driving; element, hot is c: pahle ot niovmueut reh'ttive thereto in the omioaite dirta'tion until arrested hy said uranium again moving: into contact with rut-h other.

l. rotary power hon, woni n hie; element, an rlenirnt driven l rai'ryiio a hoe. a plurality tll ill? trou one of naitl eieinrntn, and iftttltlJtl. arranged on the other e :singhi nirmher on the one l'dlii llllllt pins on the other ohaneut, in sulert" ing normally held in vieldahle contact, that: the driven element mover; in one direction in unison with the driving element but is capable of movement; relative thereto in h and the .i on, he-

the opposite direction, until arrested by contact of the single member With one of said pins.

3. A rotary powe'r hoe, comprising a driving element an element driven thereby and carrying a hoe, a pin projecting from one ofsaid elements, and a plurality of vy'leldable members arranged on the other element, thepinand the other members, in succession, bee ingnormally held in yieldable contact, so that the driven element movesin one direction in unison with .the driving element, but is capablef movement relative thereto in the opposite-direction, until arrested by contact of the pin with one of the other'members' 4. A rotary power hoe, comprising a driving' element, an element driven thereby and i carryinga hoe, a (pin projecting from one of saidelements, a spring-controlled catch arranged on thebther' element, said catch being normally held in contact with said pin. but the latter being movable out of contact therewith, so that the driven element moves in one direction in unison with the driving.

element, but is capable of movement relative thereto in the opposite direction, until arrested by the 5; A rotary power hoe, comprising a driving element, an element driven thereby and pin again moving into contact with the catch.

menace carrying ahoe, a pluralityof pins projecting from one of said elements, and a plurality of sprin controlledcatches arranged on the other e ement, said catches being normally held in contact with said P'ins but the latter being movable out of contact therewith so that-the drivennelement moves in one direction inunison with the driving element, but'is capableof, movement relative thereto in the .opposit'd-irection, until'arrestedwby the -s'a1d pins again coming into v contact with the catches. i 6. A rotary power hoe, comprising a driving shaft, a plurality of flanged bosses keyed thereon and Whose flanges are shouldered to vform grooves betweenju'xtaposed flanges, a

plurality of disks carrying the cutting hoes loosely' mounted in said grooves, a plurality v AD'AMFUHR. I Witnesseszfl Y WULrcANo ADoLr MiiLLER, Y

KARLWALrnm, 

